Roger Clark Motorsport 67mm Electric Throttle - Suit Reversed ManifoldThe RCM drive by wire electric throttle body has been designed and engineered specifically for Subaru applications, for vehicles using a reversed inlet manifold configuration. Manufactured from machined billet aluminum housings, it is fully assembled and ready to bolt directly to your reversed manifold, it is balanced and calibrated to a set idle condition. Patented shaftless technology, gaining up to 7% more airflow Failsafe spring return Operational